I haven't smoked since friday(march 9th) and I have a drug test this upcoming friday(march 16th). i was a very heavy smoker and i wasn't sure that these people were going to call me back for a job so my dumbass continued to smoke. i've been drinking a shitload of water, green tea and cranberry juice but i'm still very concerned about passing. i weigh about 100lbs and i'm 5'4 if that makes a difference. has anyone used detox/cleansing pills sold at GNC or any other store like that to clean out your system three days before the test? DID THEY WORK? share your stores please. i'm so fucking nervous about this test.